trusted adviser and national security expert dennis mcdonough will take over for jack lew. lew is the president's nominee for treasury secretary. mcdonough has been advising president obama on foreign policy for nearly a decade and has played a key role in all the president's major national security decisions, including the end of the iraq war, the repeal of don't ask, don't tell, and the withdrawal from afghanistan. an official announcement is expected in about an hour. >>> the president's former challenger mitt romney will be in town today for a rare appearance. he's attending a luncheon hosted by philanthropist kathleen reynolds and bill marriott jr. at the marriott hotel downtown. marriott jr. has rejoined the board of directors after leaving in 2011 to run for the white house. he chose not to attend the inauguration monday, the first nominee to do so since michael dukakis back in 1989. storm team 4 meteorologist tom kierein is here with a look at the forecast. >>> normally, it's boring and drab and gray in the winter. when it snows, everything turns bright and beautifu